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 Has own property (version: 0)

Check if an object is undefined

Comparing performance of: Using `in` vs Using `hasOwn()` vs Using `hasOwnProperty()` vs Using `undefined` check

Created: one year ago by: Registered User
Jump to the latest result
Script Preparation code:
Tests:

  • Using `in`

  • Using `hasOwn()`

  • Using `hasOwnProperty()`

  • Using `undefined` check

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    Using `in`
    Using `hasOwn()`
    Using `hasOwnProperty()`
    Using `undefined` check

    Fastest: N/A

    Slowest: N/A

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Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Chrome 113 on Windows
View result in a separate tab
Test name Executions per second
Using `in` 11995020.0 Ops/sec
Using `hasOwn()` 4204369.0 Ops/sec
Using `hasOwnProperty()` 10830500.0 Ops/sec
Using `undefined` check 4211547.0 Ops/sec